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Conference Papers Year : 2004

A Binary Recursive Gcd Algorithm


The binary algorithm is a variant of the Euclidean algorithm that performs well in practice. We present a quasi-linear time recursive algorithm that computes the greatest common divisor of two integers by simulating a slightly modified version of the binary algorithm. The structure of the recursive algorithm is very close to the one of the well-known Knuth-Schönhage fast gcd algorithm, but the description and the proof of correctness are significantly simpler in our case. This leads to a simplification of the implementation and to better running times.
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inria-00100175 , version 1 (26-09-2006)


  • HAL Id : inria-00100175 , version 1


Damien Stehlé, Paul Zimmermann. A Binary Recursive Gcd Algorithm. 6th International Symposium on Algorithmic Number Theory - ANTS VI, 2004, Burligton, US, pp.411--425. ⟨inria-00100175⟩
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